Income Taxes - Earnings Before Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings before income taxes
Earnings before income taxes	$ 18,063	$ 14,444	$ 12,316
Domestic [Member]
Earnings before income taxes
Earnings before income taxes	(5,396)	(6,184)	(3,773)
Non-U.S. [Member]
Earnings before income taxes
Earnings before income taxes	$ 23,459	$ 20,628	$ 16,089

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Period Type:	duration